With one glance at the notes, you'll see that rogues are obviously the class getting the most updates in the upcoming patch. There's an unusual number of changes coming our way. I'm used to a few terse sentences under the brittle yellow Rogue heading in the patch notes. Currently, we're facing paragraphs of tweaks, a handful of completely new abilities, and even redesigns of old techniques.
None of the changes should affect our core DPS mechanics. Our rotations are going to stay exactly the same, our weapon and poison changes won't be changing, and we'll want the same stats on our gear. Combat and subtlety rogues were both slightly buffed, but all three specs should be competitive in PvE. Many of the changes should significantly increase our stock in PvP, via both offensive and defensive improvements.